888631 has 2 divisors, whose sum is σ = 888632. Its totient is φ = 888630.

The previous prime is 888623. The next prime is 888637. The reversal of 888631 is 136888.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 888631 - 2³ = 888623 is a prime.

It is a super-2 number, since 2×888631² = 1579330108322, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (888637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444315 + 444316.

It is an arithmetic number, because the mean of its divisors is an integer number (444316).

2⁸⁸⁸⁶³¹ is an apocalyptic number.

888631 is a deficient number, since it is larger than the sum of its proper divisors (1).

888631 is an equidigital number, since it uses as much as digits as its factorization.

888631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 34.

The square root of 888631 is about 942.6722654242. The cubic root of 888631 is about 96.1406719510.

It can be divided in two parts, 88 and 8631, that multiplied together give a triangular number (759528 = T₁₂₃₂).

The spelling of 888631 in words is "eight hundred eighty-eight thousand, six hundred thirty-one".